cant find help on manifold relief cuts???
 

i hear everyone talking about the relief cuts where do i cut how far do i cut??? and what are the uprgraded studs and bolts everyone pushes to do before install read about it but cant see any direct info on how to do this

The upgraded studs are for the mani-turbo bolts (and the turbo-DP bolts if you want to get fancy). IIRC they're 8x1.25 exhaust studs and the corresponding nut & lockwasher OR locknut.

what is the easiest way to make the cuts and what kind of saw works best????

A sawzall with a metal-cutting blade make the cuts pretty well, but for the corners I resorted to the hacksaw because the sawzall likes to jump out of the cut while you're making it.
I would go back and widen all the cuts to the width of the sawzall blade because I've been told of firsthand accounts where the cuts (made with just a hacksaw) were skinny enough that they fused together with heat.

Is the middle cut really only supposed to go halfwayish through in the link posted?

no, it's meant to go all the way through.

TBM - just use a sawzall. Get some earplugs too, it gets LOUD.

if it were me i'd just do in between 1 & 2 and 3 & 4 and call it a day....the rest is over the top.

also im dumb on the bolt sizes dont understand what 8x 1.25 means grade 8 im guess but what is the 1.25?

just take the stud to the hardware store, and find matching studs and nuts.

huh so if i am taking the stud to the hardware store than what am i gettting thats diff? im so confused

sorry to be so stupid just trying to understand

Wait. Im Sorry. I thouhgt you were replacing Studs and nuts. My Bad

no i have the greddy kit how it comes but everyone says to replace with upgraded shit the guy a few posts ago said the size but doesnt tell me anything really??? still confused i got the relief cuts figured out

If you are replacing the studs and nuts, just take one out and take it to the Hardware store with you, and get the same size stud, nut, and lockwasher, Or Stud and locknut

IIRC they're 8x1.25 exhaust studs and the corresponding nut & lockwasher OR locknut.

You go to the parts store and look for the exhaust studs that say "8x1.25" on the baggie. They're a little over an inch long.. and they'll probably be black...

If you can't figure that out, go to the guy behind the counter and ask him where the "grade eight, size eight by one-twenty-five millimeter exhaust studs" are.

Thats The Kind Of Answer Im Looking For Simple And To The Point Thanks!

M8 is the size of the threading.

You'd want (4) M10 studs for the manifold to turbo flange, IIRC.

1.25" is the tread pitch. So look for M10x1.25 Grade 8 Automotive Studs.

You'll want M8 for the turbo to downpipe.

Make sure they are long enough so you can fit your new nuts on them, but not too long that the stick out and get in the way of mounting things.

like this:
https://www.miataturbo.net/braineack...Small%2529.jpg

Dont take my word for the sizing, bring the manifold and turbo with you and make sure. ACE hardware sells everything you need.

Brain - the greddy uses the same diameter bolts/studs for mani-turbo and turbo-DP.

Since they are Metric, they will probably be rated as "Class 10.9" rather than Grade 8.

went to ace hardware today no luck at all the ppl working there didnt help at all either couldnt find the sizes i need or the grade i wanted they only had class 8.8 or something like that this is frustrating lol!

Did you or did you not take the stud with you....
Just do that...
Like I said....

I would make them thicker than the picture of that HKS manifold. I have seen thin cuts fuse back together over time

i dont have the studs i have the original bolts

the mani didnt come with studs?

nope it came with some bolts

so take the bolts and match the thread...

Uh..
Am I not saying something right?
If im not, sorry, but, just take them there and find some matchings, like koto said..

In the nuts and bolts section they'll have a bin labeled "automotive studs." Those are what you wanted. Dont worry about the class/grade, just get the correct size. Don't ask for help in stores like that, you'll get help from 90 year old men on their last breath who don't even know their piss from apple juice.

so i went to both the ace hardwares today and found the bin with auto studs yep sure didnt have the right sizes they were way to long and they only had like 5 diff ones

and the wrong thread pitch at that

your obviously not looking in the right spot. Did you tell them its for an exhaust mani for a miata. I know the ace down here, its divided between foreign and domestic Hehe.

yea they were like M8x1.00 and M6 M10 but not M8x1.25

I just picked this one up, are those cuts what your referring to?

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